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 - polarit2.c (source / functions)		Hit	Total	Coverage
Test:	PARI/GP v2.18.1 lcov report (development 30318-7d854b8994)	Lines:	2267	2508	90.4 %
Date:	2025-06-06 09:19:58	Functions:	214	224	95.5 %
Legend:	Lines: hit not hit


Function Name	Hit count
CX_factor	21
FE_matconcat	259
Flv_factorback	108623
FlxqV_factorback	2499
FpV_factorback	8521417
Fpmul	28783303
Fppow	244411
FqV_factorback	14
Lazard	629135
Lazard2	834368
Q_content	1844236
Q_content_safe	1276832881
Q_content_v	179104364
Q_denom	3194573
Q_denom_safe	245977502
Q_denom_v	53806043
Q_div_to_int	486555
Q_divi_to_int	172206896
Q_divmuli_to_int	11579684
Q_divq_to_int	10320189
Q_factor	21587
Q_factor_limit	9698
Q_gcd	1007620255
Q_mul_to_int	0
Q_muli_to_int	141505160
Q_primitive_part	88432487
Q_primpart	9492960
Q_remove_denom	55615219
Qi_cmp	91
Qi_factor	49
Qi_factor_p	42
Qi_gcd	399
Qi_normal	469
Qi_primpart	49
Qi_primpart_try	70
RX_factor	28
R_to_Q_down	525
R_to_Q_up	525
RgC_settype	269314124
RgM_RgC_type	32367277
RgM_rescale_to_int	4608322
RgM_settype	48298639
RgM_type	687428
RgM_type2	7622126
RgV_type	774603
RgV_type2	203
RgXQ_charpoly	13008
RgXQ_charpoly_FpXQ	14
RgXQ_charpoly_fast	13008
RgXQ_charpoly_i	976701
RgXQ_factor	252
RgXQ_factor_i	252
RgXQ_inv	135265
RgXQ_inv_FpXQ	12054
RgXQ_inv_FpXQXQ	7
RgXQ_inv_fast	135265
RgXQ_inv_i	848
RgXQ_mul	1527735
RgXQ_mul_FpXQ	274309
RgXQ_mul_FpXQXQ	385
RgXQ_mul_fast	1527735
RgXQ_ratlift	112
RgXQ_sqr	458367
RgXQ_sqr_FpXQ	14
RgXQ_sqr_FpXQXQ	0
RgXQ_sqr_fast	458367
RgXY_factor	259
RgXY_factor_squarefree	273
RgXY_squff	259
RgX_Frobenius_deflate	343
RgX_Rg_mul_i	2451053
RgX_Rg_type	6063686
RgX_chinese_coprime	0
RgX_cmbf	6475
RgX_disc	124154
RgX_disc_FpX	42
RgX_disc_FpXQX	28
RgX_disc_fast	124154
RgX_disc_i	413
RgX_extgcd	4970
RgX_extgcd_FpX	133
RgX_extgcd_FpXQX	7
RgX_extgcd_fast	4529
RgX_extgcd_simple	0
RgX_extresultant_FpX	77
RgX_extresultant_fast	1568
RgX_factor	13832
RgX_fix_quadratic	98
RgX_gcd	10414733
RgX_gcd_FpX	111909
RgX_gcd_FpXQX	7
RgX_gcd_FpXk	595
RgX_gcd_QXQX	3150
RgX_gcd_ZXQX	2289
RgX_gcd_fast	10414733
RgX_gcd_simple	0
RgX_halfgcd	0
RgX_halfgcd_all	63
RgX_halfgcd_all_FpX	28
RgX_halfgcd_all_FpXQX	0
RgX_halfgcd_all_fast	63
RgX_halfgcd_all_i	14
RgX_is_irred	11165
RgX_is_irred_i	11165
RgX_liftred	10878
RgX_neg_i	834367
RgX_pseudodenom	1248632
RgX_rescale_to_int	37478
RgX_resultant_FpX	28
RgX_resultant_FpXQX	21
RgX_resultant_all	1066229
RgX_resultant_sylvester	169893
RgX_settype	664536158
RgX_sturmpart	763
RgX_sylvestermatrix	169893
RgX_type	2546324
RgX_type2	149322207
RgX_type3	1527735
RgX_type_decode	11719209
RgX_type_is_composite	163891521
Rg_type	171956850
ZV_lcm	3575
ZX_content	13146
Z_content	9894371
Z_content_v	2286603
Zi_mul3	896
Zi_rem	448
c_is_rational	3269
c_zero_gcd	1386
caract_const	126
centermod	10959641
centermod_i	14473004
centermodii	87893314
choosesubtype	38134741
choosetype	372320581
cont_gcd	1924955
cont_gcd_gen	2635
cont_gcd_pol	1912226
cont_gcd_pol_i	1912226
cont_gcd_rfrac	10115
content	72467537
deg1_from_roots	156910
factor	62371
factor0	59403
factor_domain	63064
factorback	1434402
factorback2	24969014
fix_lcm	3680
fix_pol	343
gbezout	427
gc_gcdext	217
gcd3	6390
gcdext0	427
gcdiq	12596372
gcdmonome	3717
gcdqq	27549872
gdivexact	27754609
gen_cmp_RgXY	385
gen_factorback	33822903
ggcd	27700704
ggcd0	5203644
ghalfgcd	91
ginvmod	35287
glcm	3297
glcm0	2898
inexact	11424
init_resultant	1151107
isinexactall	2198
mul	54659659
must_negate	4368
newtonpoly	28
nextSousResultant	834368
normalized_mul	1719110
normalized_to_RgX	1039031
ok_bloc	434
padic_gcd	1435
pol_approx0	0
poldisc0	4714
polfromroots	56
polisirreducible	11165
polresultant0	504
polresultantext	1463
polresultantext0	1575
polsym	113703
polsym_gen	131119
powi	79167691
primitive_part	2800666
primpart	161
qgcd	154
quadratic_to_RgX	420
random_FpX_monic	112
reduceddiscsmith	7
reductum_lg	2445940
rescale_init	29590597
resultant	1151078
resultant2	28
resultant_fast	1151077
rnfcharpoly	224
roots_from_deg1	63896
roots_to_pol	774593
roots_to_pol_FpV	14
roots_to_pol_FqV	7
roots_to_pol_fast	774519
roots_to_pol_r1	264550
row_Q_primpart	17780
s_centermod	0
scalar_bezout	112
scalar_res	7
settype	3813875629
sturmpart	385
sturmpart_i	1148
subres_step	11790
subresext	0
subresext_i	2346
syl_RgC	371755
syl_RgM	169900
sylvestermatrix	7
triv_cont_gcd	3276
vec_Q_primpart	116631
vecprod	10003
zero_bezout	63
zero_extgcd	434
zero_gcd	8258289
zero_gcd2	8879775

Generated by: LCOV version 1.16