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 30622-caa25a75db) Lines: 1903 2156 88.3 % Date: 2026-01-22 09:18:00 Functions: 205 225 91.1 % 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
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
to_ZX	251
ffeltmaprel_i	252
ffmaprel	252
ffmaprel_i	252
FpX_FpXY_eval_resultant	284
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
nf_direct_compositum	315
residual_characteristic	329
Z_init_CRT	357
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ZX_composedsum	379
ffcompomap	420
Fp_XpN_powu	434
ffinit	567
ffsumnbirred	588
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	1059
FpX_Fp_translate	1134
char_update_prime	1225
ffpartmapimage	1260
FpXV_composedsum	1588
ffinit_fact	1588
fpinit	1681
ZXQ_minpoly	1698
FqM_red	1701
FpXM_center	1800
Flx_Lazard	1961
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2494
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
RgX_is_FpXQX	3395
ZXQ_minpoly_slice	3519
ZXQ_minpoly_worker	3519
ZXQX_disc_all	3921
ZXQX_resultant_all	3984
ZXQX_resultant_bound	3987
_Fq_s	4151
nfX_disc	4152
ZXQX_resultant_bound_i	4302
ffmap_i	4459
get_Fq_field	4725
charact_res	4739
ZXQX_resultant_slice	4904
ZXQX_resultant_worker	4904
RgX_to_FpXQX	5105
FpXC_center	5467
ZM_init_CRT	5979
FlxY_to_FlyX	6103
Flx_FlxY_resultant	6105
char_update_int	6594
fpinit_check	7325
FlxX_pseudorem	7456
Z_incremental_CRT	7525
ZM_incremental_CRT	7781
RgX_RgXY_ResBound	8153
ZX_compositum	8388
ZX_compositum_lambda	8388
FqM_to_FlxqM	8675
ZX_ZXY_ResBound_1	8767
ZX_composedsum_i	8767
QXQ_charpoly	8946
sqrN2	9007
ZX_composedsum_slice	9032
ZX_composedsum_worker	9032
_Fq_inv	9331
ZXQX_resultant_prime	11009
FqXY_eval	14623
Fq_powu	15050
QXQ_norm	19418
ZX_ZXY_resultant_LERS	20158
Flx_resultant_set_dglist	21036
addii_abs	22490
ZXQ_charpoly_sqf	22559
FqC_red	23706
ZX_norml1_1	27575
characteristic	28014
ZX_init_CRT	28690
ffinit_fact_Flx	28959
flinit	31888
QXQ_div	32363
FpXQX_normalize	33470
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FqV_roots_to_pol	35492
ZX_ZXY_rnfequation_lambda	35514
_Fq_equal0	38388
Fq_Fp_mul	43945
RgX_to_FqX	49083
RgM_to_FqM	52325
init_Flxq_i	52912
ZX_ZXY_resultant_all	52942
init_Fq	54601
init_Fq_i	55168
ZX_resultant	55193
ZX_ZXY_rnfequation	55518
FqX_Fq_add	55832
Rg_is_FpXQ	60900
ZX_ZXY_resultant	73522
Fq_halve	81417
Fq_inv	84774
FqXY_evalx	97391
FqC_to_FlxqC	103864
FqV_red	107496
RgM_to_Flm	118296
ZX_ZXY_resultant_slice	119107
ZX_ZXY_resultant_worker	119107
QXQ_div_slice	120197
QXQ_div_worker	120198
ZX_incremental_CRT_raw	132522
swap_vars	133458
QXQ_inv	144472
FqX_Fq_mul_to_monic	149049
flinit_check	149421
ZX_ZXY_ResBound	155741
monomialcopy	157969
log2N2	164508
Fq_sqrtn	170786
charact	177338
QXQ_inv_slice	210645
QXQ_inv_worker	210646
RgC_to_FqC	219128
RgM_to_FpM	222349
_Fq_mul	243341
pol_x_powers	285472
_Fq_red	303247
_Fq_neg	315028
Fq_div	343791
ZX_ZXY_resultant_prime	351934
Flx_FlxY_resultant_polint	355556
_Fq_add	362523
RgV_to_Flv	369001
FqX_eval	386610
QXQ_sqr	406435
Fq_mulu	490162
Fq_sqr	606386
QXQ_mul	827593
FpXV_FpC_mul	851487
ZXX_ResBound	987294
ZXX_resultant_interp	987294
ZXX_resultant	987329
ZXX_resultant_slice	992596
ZXX_resultant_worker	992596
Fq_pow	1014736
ZX_discbound	1021421
ZX_disc	1024659
Fq_neg	1063250
ZX_disc_all	1080052
ZXX_resultant_prime	1094673
FlxX_resultant_polint	1094674
ZXQ_charpoly	1212029
ZX_resultant_all	1221807
ZX_norml1	1258217
Rg_to_FpXQ	1291986
ZX_resultant_slice	1375932
ZX_resultant_worker	1375940
RgC_to_FpC	1751090
Flx_resultant_all	1873945
Fq_sqrt	1893010
FlxY_evalx_drop	1895063
ZXX_is_sparse	1974644
RgX_is_ZXX	1974910
resbound	2130325
gen_crt	2138140
gen_inccrt	2904956
RgX_to_FpX	3334988
ZX_resultant_prime	3728860
FlxY_eval_resultant	4251653
Fl_chinese_coprime	4683412
Flx_FlxY_eval_resultant	5407455
gen_inccrt_i	8554636
Fq_sub	8556624
Fq_mul	8572908
primelist	9139156
Fq_add	11577185
monomial	13552608
RgX_is_FpX	27659118
Rg_to_Fp	52329432
Rg_is_Fp	69923058

Generated by: LCOV version 1.16