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 30775-9d8a55740a) Lines: 1905 2201 86.6 % Date: 2026-04-06 09:26:18 Functions: 205 228 89.9 % 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
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	591
ffsumnbirred	616
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	948
ffmap	1036
FqX_Fq_sub	1059
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
Flx_Lazard	1954
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2482
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
RgX_to_FpXQX	3887
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
charact_res	4137
_Fq_s	4151
nfX_disc	4172
ZXQX_resultant_bound_i	4322
ffmap_i	4459
get_Fq_field	4725
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
FpXC_center	5467
char_update_int	5873
ZM_init_CRT	5985
FlxY_to_FlyX	6097
Flx_FlxY_resultant	6099
fpinit_check	7332
FlxX_pseudorem	7428
Z_incremental_CRT	7525
ZM_incremental_CRT	7787
RgX_RgXY_ResBound	8207
FqM_to_FlxqM	8708
sqrN2	9061
_Fq_inv	9331
ZX_compositum_lambda	9702
ZX_compositum	9703
QXQ_charpoly	9793
ZX_ZXY_ResBound_1	10214
ZX_composedsum_i	10216
ZX_composedsum_slice	10480
ZX_composedsum_worker	10482
ZXQX_resultant_prime	11041
FqXY_eval	14623
Fq_powu	15050
QXQ_norm	19418
ZX_ZXY_resultant_LERS	22337
ZXQ_charpoly_sqf	22600
RgX_is_FpXQX	22974
Flx_resultant_set_dglist	23720
FqC_red	24058
addii_abs	25975
characteristic	28007
ffinit_fact_Flx	28978
flinit	31909
ZX_norml1_1	32062
ZX_init_CRT	32464
QXQ_div	33207
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_normalize	38189
_Fq_equal0	38388
FqV_roots_to_pol	40454
ZX_ZXY_rnfequation_lambda	40509
Fq_Fp_mul	43985
RgX_to_FqX	49200
RgM_to_FqM	52325
init_Flxq_i	52944
init_Fq	54655
init_Fq_i	55221
FqX_Fq_add	55832
ZX_resultant	55867
ZX_ZXY_resultant_all	60116
ZX_ZXY_rnfequation	60554
ZX_ZXY_resultant	78558
Fq_halve	81417
Fq_inv	89298
FqXY_evalx	97391
FqC_to_FlxqC	109019
FqV_red	109464
RgM_to_Flm	118296
QXQ_div_slice	121144
QXQ_div_worker	121144
ZX_ZXY_resultant_slice	124317
ZX_ZXY_resultant_worker	124317
QXQ_inv	145999
swap_vars	146150
ZX_incremental_CRT_raw	148350
FqX_Fq_mul_to_monic	149052
flinit_check	149524
monomialcopy	156275
ZX_ZXY_ResBound	165997
Fq_sqrtn	170786
charact	175105
log2N2	176209
QXQ_inv_slice	212720
QXQ_inv_worker	212720
RgC_to_FqC	219128
RgM_to_FpM	222349
_Fq_mul	243341
_Fq_red	303247
_Fq_neg	315028
pol_x_powers	325899
Fq_div	343791
_Fq_add	362523
ZX_ZXY_resultant_prime	363668
Flx_FlxY_resultant_polint	367277
RgV_to_Flv	369001
FqX_eval	391144
QXQ_sqr	407060
Rg_is_FpXQ	442659
Fq_mulu	490241
Fq_sqr	611236
QXQ_mul	845489
FpXV_FpC_mul	851487
ZXX_ResBound	1010606
ZXX_resultant_interp	1010606
ZXX_resultant	1010642
ZXX_resultant_slice	1015907
ZXX_resultant_worker	1015907
Fq_neg	1080344
Fq_pow	1088229
ZXX_resultant_prime	1118161
FlxX_resultant_polint	1118164
ZX_discbound	1140647
ZX_disc	1143890
ZX_disc_all	1205966
ZXQ_charpoly	1247222
Rg_to_FpXQ	1286408
ZX_norml1	1296828
ZX_resultant_all	1352861
ZX_resultant_slice	1498502
ZX_resultant_worker	1498521
RgC_to_FpC	1751090
Fq_sqrt	1893010
ZXX_is_sparse	2021269
RgX_is_ZXX	2021534
Flx_resultant_all	2089824
FlxY_evalx_drop	2113619
resbound	2187194
gen_crt	2288124
gen_inccrt	3075763
RgX_to_FpX	3334355
ZX_resultant_prime	3870457
FlxY_eval_resultant	4348218
Fl_chinese_coprime	5162493
Flx_FlxY_eval_resultant	5518806
Fq_sub	8563004
Fq_mul	8609143
gen_inccrt_i	8788870
primelist	9376930
Fq_add	11593378
monomial	12542103
RgX_is_FpX	28216549
Rg_to_Fp	52391784
Rg_is_Fp	73382655

Generated by: LCOV version 1.16