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) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30816-9c15a02229) Lines: 1904 2201 86.5 % Date: 2026-04-15 09:25:30 Functions: 205 228 89.9 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_chinese_coprime	5163127
FlxX_pseudorem	7425
FlxX_resultant	0
FlxX_resultant_polint	1118199
FlxX_resultant_pre	0
FlxX_resultant_subres	2485
FlxY_eval_resultant	4348367
FlxY_evalx_drop	2113896
FlxY_to_FlyX	6096
Flx_FlxY_eval_resultant	5518609
Flx_FlxY_resultant	6096
Flx_FlxY_resultant_polint	367279
Flx_Lazard	1953
Flx_resultant_all	2090198
Flx_resultant_set_dglist	23719
FpXC_center	5467
FpXM_center	1800
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_XpN_powu	0
FpXQX_normalize	38189
FpXV_FpC_mul	851487
FpXV_composedsum	1588
FpXY_FpXQ_evaly	2072
FpX_FpXY_eval_resultant	284
FpX_FpXY_resultant	15
FpX_Fp_translate	1134
FpX_Fp_translate_basecase	700
FpX_composedprod	0
FpX_composedsum	93
Fp_XpN_powu	434
FqC_FqV_mul	105
FqC_Fq_mul	0
FqC_add	0
FqC_red	24058
FqC_sub	0
FqC_to_FlxqC	109022
FqM_add	0
FqM_red	1701
FqM_sub	0
FqM_to_FlxqM	8708
FqV_red	109466
FqV_roots_to_pol	40456
FqXQ_matrix_pow	0
FqXQ_powers	0
FqXY_eval	14623
FqXY_evalx	97391
FqX_Fq_add	55832
FqX_Fq_mul_to_monic	149052
FqX_Fq_sub	1059
FqX_Fq_translate	33880
FqX_eval	391145
Fq_Fp_mul	43985
Fq_add	11593383
Fq_div	343791
Fq_halve	81417
Fq_inv	89298
Fq_invsafe	0
Fq_mul	8609153
Fq_mulu	490260
Fq_neg	1081740
Fq_neg_inv	0
Fq_pow	1088217
Fq_powu	15050
Fq_sqr	611236
Fq_sqrt	1893010
Fq_sqrtn	170786
Fq_sub	8563004
QXQ_charpoly	9793
QXQ_div	33207
QXQ_div_slice	121144
QXQ_div_worker	121144
QXQ_intnorm	0
QXQ_inv	145994
QXQ_inv_slice	212712
QXQ_inv_worker	212712
QXQ_mul	845486
QXQ_norm	19418
QXQ_sqr	407060
QX_disc	7
QX_resultant	56
RgC_to_FpC	1751090
RgC_to_FqC	219128
RgM_is_FpM	0
RgM_to_Flm	118296
RgM_to_FpM	222349
RgM_to_FqM	52325
RgV_is_FpV	0
RgV_to_Flv	369001
RgV_to_FpV	140
RgX_RgXY_ResBound	8207
RgX_RgXY_ResBound_1	854
RgX_is_FpX	28220701
RgX_is_FpXQX	22974
RgX_is_ZXX	2021604
RgX_norml1_1	3283
RgX_to_FpX	3334355
RgX_to_FpXQX	3887
RgX_to_FqX	49200
Rg_is_Fp	73418769
Rg_is_FpXQ	442659
Rg_to_Fp	52392117
Rg_to_FpXQ	1286408
ZM_incremental_CRT	7787
ZM_init_CRT	5985
ZXM_incremental_CRT	653
ZXM_init_CRT	679
ZXQXQ_minpoly	0
ZXQXQ_minpoly_slice	0
ZXQXQ_minpoly_worker	0
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
ZXQX_resultant_bound_i	4322
ZXQX_resultant_prime	11037
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
ZXQ_charpoly	1247331
ZXQ_charpoly_sqf	22599
ZXQ_minpoly	1701
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
ZXX_ResBound	1010643
ZXX_is_sparse	2021340
ZXX_resultant	1010677
ZXX_resultant_interp	1010643
ZXX_resultant_prime	1118199
ZXX_resultant_slice	1015946
ZXX_resultant_worker	1015946
ZX_ZXY_ResBound	165953
ZX_ZXY_ResBound_1	10215
ZX_ZXY_resultant	78557
ZX_ZXY_resultant_LERS	22337
ZX_ZXY_resultant_all	60116
ZX_ZXY_resultant_prime	363668
ZX_ZXY_resultant_slice	124317
ZX_ZXY_resultant_worker	124317
ZX_ZXY_rnfequation	60553
ZX_ZXY_rnfequation_lambda	40509
ZX_composedsum	511
ZX_composedsum_i	10216
ZX_composedsum_slice	10479
ZX_composedsum_worker	10482
ZX_compositum	9703
ZX_compositum_lambda	9700
ZX_disc	1143904
ZX_disc_all	1205973
ZX_discbound	1097161
ZX_incremental_CRT	0
ZX_incremental_CRT_raw	148352
ZX_init_CRT	32466
ZX_norml1	1296881
ZX_norml1_1	32054
ZX_resultant	55867
ZX_resultant_all	1309318
ZX_resultant_prime	3739945
ZX_resultant_slice	1441791
ZX_resultant_worker	1441808
Z_incremental_CRT	7525
Z_init_CRT	357
_FpX_composedsum	93
_Fq_add	362523
_Fq_equal0	38388
_Fq_inv	9331
_Fq_mul	243341
_Fq_neg	315028
_Fq_red	303247
_Fq_s	4151
_ZXQ_powu	56
addii_abs	25972
char_update_int	5873
char_update_prime	1225
charact	175105
charact_res	4137
characteristic	28007
checkmap	2261
err_compo	84
ffcompomap	420
ffeltmap_i	2709
ffeltmaprel_i	252
ffembed	189
ffextend	91
fffrobenius	42
ffinit	567
ffinit_Artin_Schreier	952
ffinit_Artin_Schreier_2	595
ffinit_fact	1588
ffinit_fact_Flx	28979
ffinit_rand	0
ffinvmap	133
ffmap	1036
ffmap_i	4459
ffmaprel	252
ffmaprel_i	252
ffnbirred	3178
ffnbirred0	140
ffpartmapimage	1260
ffsumnbirred	616
flinit	31909
flinit_check	149523
fpinit	1681
fpinit_check	7332
gen_crt	2244633
gen_inccrt	3032321
gen_inccrt_i	8745772
get_Fq_field	4725
init_Flxq	0
init_Flxq_i	52944
init_Fq	54654
init_Fq_i	55221
log2N2	176170
monomial	12543375
monomialcopy	156275
nfX_disc	4172
nfX_resultant	119
nf_direct_compositum	315
pol_x_powers	325899
primelist	9320698
resbound	2187220
residual_characteristic	336
sqrN2	9061
swap_vars	146146
to_ZX	252
vecbinomial_Fp	0

Generated by: LCOV version 1.16