Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - polarit3.c (source / functions) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 86.5 % 2201 1904 Test Date: 2026-08-13 17:02:38 Functions: 89.9 % 228 205 Legend: Lines:     hit not hit

Function Name	Hit count
FlxX_resultant	0
FlxX_resultant_pre	0
FpXQX_XpN_powu	0
FpX_composedprod	0
FqC_Fq_mul	0
FqC_add	0
FqC_sub	0
FqM_add	0
FqM_sub	0
FqXQ_matrix_pow	0
FqXQ_powers	0
Fq_invsafe	0
Fq_neg_inv	0
QXQ_intnorm	0
RgM_is_FpM	0
RgV_is_FpV	0
ZXQXQ_minpoly	0
ZXQXQ_minpoly_slice	0
ZXQXQ_minpoly_worker	0
ZX_incremental_CRT	0
ffinit_rand	0
init_Flxq	0
vecbinomial_Fp	0
QX_disc	7
FpX_FpXY_resultant	15
fffrobenius	42
QX_resultant	56
_ZXQ_powu	56
err_compo	84
ffextend	91
FpX_composedsum	93
_FpX_composedsum	93
FqC_FqV_mul	105
nfX_resultant	119
ffinvmap	133
RgV_to_FpV	140
ffnbirred0	140
ffembed	189
ffeltmaprel_i	252
ffmaprel	252
ffmaprel_i	252
to_ZX	252
ffsumnbirred	280
FpX_FpXY_eval_resultant	284
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
nf_direct_compositum	315
residual_characteristic	336
Z_init_CRT	357
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ffcompomap	420
Fp_XpN_powu	434
ZX_composedsum	511
ffinit	567
ffinit_Artin_Schreier_2	595
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	952
ffmap	1036
FqX_Fq_sub	1045
FpX_Fp_translate	1134
char_update_prime	1225
ffpartmapimage	1260
FpXV_composedsum	1588
ffinit_fact	1588
fpinit	1681
FqM_red	1701
ZXQ_minpoly	1701
FpXM_center	1800
FpXY_FpXQ_evaly	1890
Flx_Lazard	1953
checkmap	2261
ffnbirred	2338
FlxX_resultant_subres	2485
ffeltmap_i	2709
RgX_norml1_1	3283
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
_Fq_s	4151
nfX_disc	4172
ZXQX_resultant_bound_i	4322
charact_res	4354
ffmap_i	4459
RgX_to_FpXQX	4517
get_Fq_field	4725
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
FpXC_center	5467
char_update_int	5873
FlxY_to_FlyX	6096
Flx_FlxY_resultant	6096
ZM_init_CRT	6202
fpinit_check	7332
FlxX_pseudorem	7427
Z_incremental_CRT	7469
ZM_incremental_CRT	8104
RgX_RgXY_ResBound	8207
FqM_to_FlxqM	8708
sqrN2	9061
_Fq_inv	9331
ZX_compositum	9716
ZX_compositum_lambda	9716
QXQ_charpoly	9793
ZX_ZXY_ResBound_1	10227
ZX_composedsum_i	10227
ZX_composedsum_slice	10500
ZX_composedsum_worker	10500
ZXQX_resultant_prime	11041
FqXY_eval	14476
Fq_powu	14882
QXQ_norm	19418
ZX_ZXY_resultant_LERS	22337
ZXQ_charpoly_sqf	22610
RgX_is_FpXQX	22974
Flx_resultant_set_dglist	23720
FqC_red	24058
addii_abs	26236
characteristic	28077
ffinit_fact_Flx	28993
flinit	31937
ZX_norml1_1	32144
ZX_init_CRT	32466
QXQ_div	33208
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_normalize	38203
_Fq_equal0	38388
FqV_roots_to_pol	40451
ZX_ZXY_rnfequation_lambda	40509
Fq_Fp_mul	43222
RgX_to_FqX	49200
RgM_to_FqM	52325
init_Flxq_i	52959
init_Fq	54669
FqX_Fq_add	55097
init_Fq_i	55236
ZX_resultant	55867
ZX_ZXY_resultant_all	60116
ZX_ZXY_rnfequation	60564
ZX_ZXY_resultant	78568
Fq_halve	81305
Fq_inv	89079
FqXY_evalx	97118
FqC_to_FlxqC	109015
FqV_red	109644
RgM_to_Flm	118296
QXQ_div_slice	121152
QXQ_div_worker	121152
ZX_ZXY_resultant_slice	124330
ZX_ZXY_resultant_worker	124330
swap_vars	146160
QXQ_inv	146231
ZX_incremental_CRT_raw	148356
FqX_Fq_mul_to_monic	149045
flinit_check	149622
monomialcopy	158039
ZX_ZXY_ResBound	165925
Fq_sqrtn	170786
charact	176022
log2N2	176152
QXQ_inv_slice	213168
QXQ_inv_worker	213168
RgC_to_FqC	219128
RgM_to_FpM	222552
_Fq_mul	243341
_Fq_red	303247
_Fq_neg	315028
pol_x_powers	326392
Fq_div	342657
_Fq_add	362523
ZX_ZXY_resultant_prime	363696
Flx_FlxY_resultant_polint	367307
RgV_to_Flv	368997
FqX_eval	388086
QXQ_sqr	407301
Rg_is_FpXQ	442918
Fq_mulu	488638
Fq_sqr	610888
QXQ_mul	846103
FpXV_FpC_mul	861854
ZXX_ResBound	1010942
ZXX_resultant_interp	1010942
ZXX_resultant	1010977
ZXX_resultant_slice	1016242
ZXX_resultant_worker	1016242
Fq_neg	1083036
Fq_pow	1088309
ZX_discbound	1104954
FlxX_resultant_polint	1118576
ZXX_resultant_prime	1118576
ZX_disc	1151696
ZX_disc_all	1213808
ZXQ_charpoly	1248307
Rg_to_FpXQ	1287493
ZX_norml1	1297447
ZX_resultant_all	1317152
ZX_resultant_slice	1466918
ZX_resultant_worker	1466918
RgC_to_FpC	1751713
Fq_sqrt	1893017
ZXX_is_sparse	2021940
RgX_is_ZXX	2022206
Flx_resultant_all	2090859
FlxY_evalx_drop	2114579
resbound	2187809
gen_crt	2252736
gen_inccrt	3042472
RgX_to_FpX	3342333
ZX_resultant_prime	3871833
FlxY_eval_resultant	4351006
Fl_chinese_coprime	5170772
Flx_FlxY_eval_resultant	5522441
Fq_sub	8584412
Fq_mul	8638235
gen_inccrt_i	8754759
primelist	9347028
Fq_add	11593710
monomial	13510486
RgX_is_FpX	28039460
Rg_to_Fp	59899216
Rg_is_Fp	70444670

Generated by: LCOV version 2.0-1